{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3557",
    "entityType": "User",
    "nonce": "0xdcc4bad79d34445e5b72ecf3dad477154b078b2640df9acc0b92d259214295da",
    "signature": "0x6a7094937b158b243cb05256c083bd77d7792fd2db8999db6f7f81f13e8894b07d7a3c0a89a475de17a3d641ba90b32c22fc316a821cc56ebcbde5ac82b1e9751b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}